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Full Discussion: Cron confusion - scheduling a script
Top Forums UNIX for Dummies Questions & Answers Cron confusion - scheduling a script Post 302773253 by landog on Wednesday 27th of February 2013 02:48:47 PM
Old 02-27-2013
Cron confusion - scheduling a script
I have a script that backs up a directory, creates a log file and mails the log file to us.
Code:
find . -print | backup -ivqf/dev/rmt0 | tee backup.log
cat backup.log|mail -v -s "Tape backup log" maillist

This script works fine from the console.

When I schedule it in cron, I never get the email notice. I look at processes and I see different pieces of the script running.
Code:
    root 11468818 14745632   0 13:53:00      -  0:00 tee backup.log
    root 12910658 14745632   0 13:53:00      -  0:00 find . -print
    root 13959374 14745632 120 13:53:00      -  0:50 backbyname -i -v -q -f /dev/rmt0
    root 14745632  6357192   0 13:53:00      -  0:00 /bin/ksh /testhost/testfiles/bckup.sh

Any tape drive commands will show that the tape drive is in use.
Code:
# tctl -f /dev/rmt0 rewind
/dev/rmt0: Resource temporarily unavailable

Any ideas on why my script will run from the console, yet has these problems when scheduled with cron?

Thanks...
 

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LEARN ABOUT DEBIAN

scsi_temperature

SCSI_TEMPERATURE(8)						     SG3_UTILS						       SCSI_TEMPERATURE(8)

NAME

       scsi_temperature - fetch the temperature of a SCSI device

SYNOPSIS

       scsi_temperature [--help] [--verbose] DEVICE [DEVICE]*

DESCRIPTION

       This Bourne shell script calls the sg_logs utility on each given DEVICE in order to find the device's temperature. The Temperature log page
       is checked first and if it is not available then the Informational Exceptions log page is checked.

OPTIONS

       Arguments to long options are mandatory for short options as well.

       -h, --help
	      print out the usage message then exit.

       -v, --verbose
	      increase level or verbosity.

EXIT STATUS

       The exit status of this script is 0 when it is successful. Otherwise the exit status is that of the last sg_logs utility  called.  See  the
       sg3_utils(8) man page.

AUTHORS

       Written by D. Gilbert

COPYRIGHT

       Copyright (C) 2011 Douglas Gilbert
       This  software  is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
       POSE.

SEE ALSO

       sg_logs (sg3_utils)

sg3_utils-1.33							   December 2011					       SCSI_TEMPERATURE(8)
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